Checklists for software errors, setup, and tool workflows.

How to Fix Windows Security Proxy Error

You may see a Windows Security proxy error when trying to access the internet after a network cha...

Download PowerShell Offline Installer for Windows 10

If you need to install PowerShell on a Windows 10 machine that has limited or no internet access,...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

How to Fix Task Scheduler Service Unavailable in Windows 10

When you open Task Scheduler and see “Task Scheduler service is unavailable,” it usually means th...

How to Fix Certbot Nginx Plugin Not Found Error

When running Certbot to obtain an SSL certificate for an Nginx server, you might see an error lik...

Fix Windows Security Backup Restore Failed Error Code

When trying to restore a backup using Windows Security (Windows Defender), you might encounter an...